uint8_t  CH_dp=0;
/* ADC init function */
void MX_ADC_Init(void)
{
  ADC_ChannelConfTypeDef sConfig;
   
  hadc.Instance = ADC1;

  hadc.Init.OversamplingMode = ENABLE;
  hadc.Init.Oversample.Ratio = ADC_OVERSAMPLING_RATIO_128;
  hadc.Init.Oversample.RightBitShift = ADC_RIGHTBITSHIFT_3;
  hadc.Init.Oversample.TriggeredMode = ADC_TRIGGEREDMODE_SINGLE_TRIGGER;
  
  hadc.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV1;
  hadc.Init.Resolution = ADC_RESOLUTION12b;
  hadc.Init.SamplingTime = ADC_SAMPLETIME_7CYCLES_5;
  hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
  hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc.Init.ContinuousConvMode = ENABLE;
  hadc.Init.DiscontinuousConvMode = DISABLE;
  hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIG_EDGE_NONE;
  hadc.Init.DMAContinuousRequests = DISABLE;
  hadc.Init.EOCSelection = EOC_SINGLE_CONV;
  hadc.Init.Overrun = OVR_DATA_PRESERVED;
  hadc.Init.LowPowerAutoWait = DISABLE;
  hadc.Init.LowPowerFrequencyMode = ENABLE;
  hadc.Init.LowPowerAutoPowerOff = DISABLE;
  HAL_ADC_Init(&hadc);

    /* USER CODE BEGIN 7 */
  if (HAL_ADCEx_Calibration_Start(&hadc, ADC_SINGLE_ENDED) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE END 7 */
    /**Configure for the selected ADC regular channel to be converted.
    */
  sConfig.Channel = ADC_CHANNEL_7;
  sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
  HAL_ADC_ConfigChannel(&hadc, &sConfig);
}

/* ADC2 init function */
void MX_ADC2_Init(void)
{
  ADC_ChannelConfTypeDef sConfig;
  
  hadc.Instance = ADC1;
  
  hadc.Init.OversamplingMode = ENABLE;
  hadc.Init.Oversample.Ratio = ADC_OVERSAMPLING_RATIO_128;
  hadc.Init.Oversample.RightBitShift = ADC_RIGHTBITSHIFT_3;
  hadc.Init.Oversample.TriggeredMode = ADC_TRIGGEREDMODE_SINGLE_TRIGGER;
  
  hadc.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV1;
  hadc.Init.Resolution = ADC_RESOLUTION12b;
  hadc.Init.SamplingTime = ADC_SAMPLETIME_7CYCLES_5;
  hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;//轮流对各个通道进行采集
  hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;//数据对齐方式
  hadc.Init.ContinuousConvMode = ENABLE;//连续转换模式
  hadc.Init.DiscontinuousConvMode = DISABLE;
  hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIG_EDGE_NONE;//控制触发模式
  hadc.Init.DMAContinuousRequests = DISABLE;
  hadc.Init.EOCSelection = EOC_SINGLE_CONV;
  hadc.Init.Overrun = OVR_DATA_PRESERVED;
  hadc.Init.LowPowerAutoWait = DISABLE;
  hadc.Init.LowPowerFrequencyMode = ENABLE;
  hadc.Init.LowPowerAutoPowerOff = DISABLE;
  HAL_ADC_Init(&hadc);
  
    /**Configure for the selected ADC regular channel to be converted.
    */
  sConfig.Channel = ADC_CHANNEL_2;
  sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
  HAL_ADC_ConfigChannel(&hadc, &sConfig);
}
/* ADC7 init function */
void MX_ADC7_Init(void)
{
  ADC_ChannelConfTypeDef sConfig;
   
  hadc.Instance = ADC1;

  hadc.Init.OversamplingMode = ENABLE;
  hadc.Init.Oversample.Ratio = ADC_OVERSAMPLING_RATIO_128;
  hadc.Init.Oversample.RightBitShift = ADC_RIGHTBITSHIFT_3;
  hadc.Init.Oversample.TriggeredMode = ADC_TRIGGEREDMODE_SINGLE_TRIGGER;
  
  hadc.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV1;
  hadc.Init.Resolution = ADC_RESOLUTION12b;
  hadc.Init.SamplingTime = ADC_SAMPLETIME_7CYCLES_5;
  hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
  hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc.Init.ContinuousConvMode = ENABLE;
  hadc.Init.DiscontinuousConvMode = DISABLE;
  hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIG_EDGE_NONE;
  hadc.Init.DMAContinuousRequests = DISABLE;
  hadc.Init.EOCSelection = EOC_SINGLE_CONV;
  hadc.Init.Overrun = OVR_DATA_PRESERVED;
  hadc.Init.LowPowerAutoWait = DISABLE;
  hadc.Init.LowPowerFrequencyMode = ENABLE;
  hadc.Init.LowPowerAutoPowerOff = DISABLE;
  HAL_ADC_Init(&hadc);
  
    /**Configure for the selected ADC regular channel to be converted.
    */
  sConfig.Channel = ADC_CHANNEL_7;
  sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
  HAL_ADC_ConfigChannel(&hadc, &sConfig);
}

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* AdcHandle)
{
  /* Get the converted value of regular channel */
  
  uwADCxConvertedValue = HAL_ADC_GetValue(AdcHandle);
  
  HAL_ADC_Stop_IT(&hadc);
        if(CH_dp==0)
        {
                CH_dp=1;
                MX_ADC2_Init();
        }
        else
        {
                CH_dp=0;
                MX_ADC7_Init();                               
        }
                        
        HAL_ADC_Start_IT(&hadc);
       
  HAL_UART_Transmit_IT(&huart1, (uint8_t*)uwADCxConvertedValue, 4);
}
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *UartHandle)
{
}

int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* Configure the system clock */
  SystemClock_Config();

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_ADC_Init();
  MX_COMP1_Init();
  MX_TIM21_Init();
  MX_USART1_UART_Init();

  /* USER CODE BEGIN 2 */
  HAL_COMP_Start(&hcomp1);
  HAL_ADC_Start_IT(&hadc);

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
  /* USER CODE END WHILE */

  /* USER CODE BEGIN 3 */
  }
  
  /* USER CODE END 3 */
}